Leadership and Coaching


We have the most experienced and talented triathlon coaches in Georgia.  All of our Coaches were named All Americans by USAT for 2011 and most of the staff again in 2012, 2013 and 2014 and beyond! Four of our coaches are USAT Youth and Junior certified, many are USAT Level 1 or 2 certified along with: swimming, track and field, power and cycling certifications. Check out our coaching bios below.

Along with coaching the teams most of our Coaches offer Personalized Coaching too.  Contact us if interested in swim lessons, personal coaching for running, cycling, or triathlons of course!

Coaching Biographies

Lisa Marshall – Owner and Head Coach

2003-05-22 16.37.48

Team Marshall 2013(Alex, Keith, Clay and Lisa)

Lisa is the CEO and founder of Multisport Explosion.  I am a 52 year old very proud mother of two very talented  triathletes; Alex (22) and Clay (20), and wife to another fantastic triathlete; Keith.  Triathlon has been our families sport and passion for the past 18 years.  Alex and Clay were members of the USAT Southeast Region Junior Elite High Performance Team, swam for Dynamo Swim Club and Milton HS along with running Cross Country and Track for Milton High School.

  • Earned USAT All American status for 6 years in a row 2005 – 2011
  • Competed in ITU Olympic World Championships in Hawaii, Hamburg and Vancouver qualified for 2 others but did not attend.
  • Southeast Masters Champion title for Sprint distance 2008
  • Overall Female Masters Champion ranking for Southeast Region 2007
  • Top 10 Podium finishes at Age Group National Championships: 3rd in 2006, 8th in 2007, 6th in 2009, 5th in 2010
  • Overall Winner and/or Masters Winner of many local and regional Sprint and Olympic Distance triathlons:  Acworth Women’s, Tugaloo Triathlon, Memphis in May and St. Anthony’s just to name a few.
  • Member of several different local Elite Tri Teams for the past 15 years
  • Former VP of Tri Atlanta Triathlon Club – the first tri club in Atlanta.
  • Community Coach for Alpharetta High School Swim Team for 11 years 2005 – 2016
  • 20+ years of competing in triathlons, duathlons and road races.
  • Athletic Director for Windward Lake Club pool, previously ran the swim lessons program for 10 years teaching children from 3 to 16 years of age
  • Private Swim Lesson instructor for the past 15 years for ages 3 to 75
  • USAT Youth and Junior Certification and  Level 1 Coaching Certification
  • USOC Coaches Accelerated Program(CAP) one of 3 USAT Coaches certified by USOC to coach potential Olympians in the sport of triathlon.
  • CPR certified
  • NISCA swim certification
  • Georgia High School Association coaches certification – 11 years
  • Former Assistant Coach for Southeast Jr Elite High Performance Team
  • Professionally worked for Federated Department Stores for 10 years in various positions from Corporate Bridal Director, Buyer, and a Sr Business Analyst.

Contact me for private or semi-private swim lessons or any sport tri related, klacmarshall@comcast.net

Anne Chrzanowski


Anne Chrzanowski started in triathlon in 2005 and became a certified USAT coach in 2008.  She went on to obtain her USAT Level 2 Certification in 2011.  Since then she has also earned certifications as a USA Track and Field Level 1, USA Cycling Level 3 and ASCA Level 2 Coach.  Anne grew up swimming in high school and swam in college at State University of New York (SUNY) Potsdam and Clarkson University where she earned All American status and was admitted into the SUNY Potsdam Hall of Fame.  She has competed in both Ironman and Ironman 70.3 World Championships.

Anne’s love of running and swimming led her into the sport of triathlon and then on to coaching.  Anne was named by USAT as the Head Team USA Coach for the 2015 World Championships in Chicago.  In 2013 she was recognized by USAT and awarded the Jeff Jewell Spirit Award.  She was a coach with Endurance Concepts, located in Atlanta, GA from 2008 to  September 2014.  She also coach’s high school cross country and track and field (8 years), coach’s a six week youth program to train for a local youth triathlon (8 years), is Head Coach for a summer swim team (9 years), and helped coach the South East Junior Elite Tri Team when needed.  She loves working with the youth and high school students to instill the love of athletics and living a healthy lifestyle.  She also excels in helping the clients she coaches to achieve their goals while balancing family and life.

Anne lives in Peachtree City, GA with Mike, her husband of 20+ years and two children, Nicole and Matthew.  She has a BS in Engineering Management from Clarkson University and an MBA from University of Buffalo.  Anne is also a 7 yr breast cancer survivor.  She still competes in triathlons and various other endurance events.


Kinsey Snell

Kinsey Snell profile pic

Kinsey is a wife, mother, and coach. She is the head coach for Multisport Explosion Gwinnett and she also coaches the XC team at Loganville Christian Academy and assists with Track and Field. Her passion is sharing her love of triathlon and an active lifestyle with others.

  • Level 1 USAT Coaching Certification and Youth and Junior certification
  • Master’s degree, Kinesiology and Exercise Science
  • Level 1 USATF Certified Coach, pending test results February 2018
  • American College of Sports Medicine, Health Specialist
  • Multiple Ironman top 5 finishes
  • Multiple Ironman 70.3 World Championship qualifier
  • 3x Boston Marathon qualifier
  • Multiple USAT All American
  • 2009 Team USA World Championship qualifier, Duathlon
  • Multiple Age Group Nationals qualifications, 2007 – 2017
  • Head Coach of Multisport Explosion Gwinnett Youth team
  • See 1 on 1 coaching page for her personal coaching plans offered


Alex Marshall

2013-06-25 18.23.38

I’m 22 years old and I’ve been competing in triathlons since I was 7. I started with Ironkids in Panama City and then went on to do several other IK’s and kids’ races. I started doing Sprint distance tri’s when I was 11 years old. I swam year round for Dynamo Swim Club for 11 years. I am honored to be a 7 year member of the USAT SE Jr. Elite High Performance team and named their Team Captain for 2013 – 2014. I also ran cross country and track for Milton HS, where I lettered for all 4 years in Swimming, XC and my Sr year in Track (I only ran track my Sr year).  I was the XC Team Captain and led our team to XC State for 3 years.  I was named by Milton HS PTSA as the Male Athlete of the Year and awarded a scholarship.  I have taught swim lessons and coached swim team for 6 years now at Windward Lake Club. Both of my parents also compete in triathlons, as well as my younger brother, Clay. I like to race because it’s fun!  I’ve been coached by Jon Adamson and my Mom(Lisa).  I am now attending Clemson University.  I was the VP for Clemson Tri Team 2014/15.

Honors and Race Results:

  • Selected by USAT for All American Honors for Youth Elites and Junior Elites
  • Earned USAT All American status for Age Group Athletes – 15 and under, twice
  • Ranked 1st in SE Region for 13 – 15 AG
  • Ranked 9th in US for Youth Elite, draft legal racing 2011
  • Ranked 8th in 2013 and 12th in 2012 in the US for Junior Elite, draft legal racing
  • Member of USAT Southeast Region High Performance Youth Triathlon Team – 7th year, Captain 2013 – 2014
  • Overall Series Champion SE Region High Performance Team Youth Male 2010
  • Bronze medalist – 3rd Overall – USAT Youth Elite National Championships 2010 – San Diego
  • Represented the USA at the PATCO World Championships July 2013 in Brazil
  • Represented the USA at the PATCO North American Championships 2012 in Canada
  • Music City Sprint tri – Nashville, TN – Overall winner
  • Rock N Roll Sprint tri – Macon, GA – Overall winner
  • Spring Fling Sprint tri – Gainesville, GA – Overall winner
  • Ironkids – Alpharetta, GA – 1st Overall, new course record 2010
  • Milton High School – Varsity Cross Country runner and Swimmer.
  • PR – 16:18 5K

Alex’s Past Athletic Accomplishments:

2007 Tri the Parks Race Series Age Group winner
2008 Powerkids in AL – 1st AG, 2nd overall
2008 Meek N Mighty in FL – 1st Overall
2008 Memphis In May Mountain Bike Tri in TN- 1st AG
2008 Rock N RollMan Sprint Tri – 3rd AG 19&U AG, I was 13
2008 Tri the Parks Mistletoe – Augusta- 1st AG 15&U
2008 Mountain Lakes Sprint Tri – AL – 1st AG 13&U
2008 Peachtree City Sprint Tri – P’tree City – 2nd AG
2008 Emerald Pointe Tri – Lake Lanier – 2nd AG
2009 Duathlon National Championship – VA – Jr. Division 3rd AG, 10th OM
2009 Rock n Rollman Sprint – 1st AG, 15th OA
2009 Buster Britton Tri – 2nd AG, 44 overall out of 482
2009 Aquathlon National Championship – 2nd AG, 10th OA
2009 Mountain Lakes Tri – 1st AG, 61st overall out of 862
USAT SE Junior Elite High Performance Team member 2008-2014, Team Captain 2013-2014

Keith Marshall


  • 26 years of competing in Multisport events
  • Married to Coach Lisa and father of Coaches Alex and Clay
  • Competed in over 350 tri’s, du’s, and running races since 1990
  • USAT All American 2011, 2013, 2014 and 2015
  • Two time Member of Team USA for Duathlon World Championships
  • Completed Boston Marathon 6 times
  • Member of Multisport Explosion Elite team
  • Milton High School Cross Country Community Coach
  • Past Accomplishments:  1st AG Atlanta Marathon, 2nd AG Atlanta Half Marathon, Overall Masters winner: Tri to Beat Cancer, Lake Lanier Sprint, Crowe’s Lake and others in the SE region.
  • ASCA Level 2 swim coach certification
  • Georgia High School Association certified coach

Clay Marshall

Clay Nationals 2011 13 to 15AG National Champion

  • All-American 15 & Under National Ranking (2012)
  • 7 year member of USAT SE High Performance Jr Elite Tri Team
  • 13 Years of Racing in Triathlons
  • USAT Youth National Champion 13 – 15 Male 2011
  • Youth Elite Nationals 2012, Junior Elite Nationals 2013 – 2015
  • 9 Years of Cross Country (Spirit, Alpha Crush, Milton HS)
  • 13 Years of Windward Lake Club Swim Team, 8 years of Dynamo Swim Club
  • Earned 12 Varsity Letters at Milton HS (XC, Swimming and Track)
  • Ran on Varsity State team at XC State meet 2012 as a freshman and led the Varsity team in 2013 as the Most Valuable Runner and the only runner to run on the State Varsity team all 4 years.
  • XC Varsity runner on team that won Fulton Co Championship, Region and 4th at State 2014 and 2015
  • Private and Group Swim Instructor with Kids ages 3-12
  • Swim Coach Windward Lake Club – 4 years
  • Eagle Scout
  • Attending Clemson University on a four year National ROTC Army scholarship.
  • Member of the Ranger Club at Clemson University.
  • Started an ROTC Endurance team Spring sememster 2017.

Mandy Stanley


Mandy Stanley has been competing in bike racing and triathlons for ten years.  It is a family sport, as her son Matt, daughter Kira, and husband Steve all race.  She became a USAT Level 1 triathlon coach in 2013.  Formerly a professional ballerina, she has taught ballet and Pilates to teens for the past 25 years.  This made for a natural transition to coaching Youth and Junior athletes.  Later in 2013, Mandy completed her USAT Youth and Junior Coaching Certification.  She especially enjoys working with young athletes due to their deep dedication and love for the sport.  Mandy has coached a Youth Elite National Champion and a third place National Championship podium finisher. Among the elite athletes she’s coached, three have ranked top five in the nation. She has also helped with the Southeast Junior Triathlon Team for the past eight years.

Mandy and her family live in Acworth, Ga.  She continues to compete and is a member of the Multisport Explosion Elite Adult Team.

Eric Cross

Eric Cross bio pic

    • 24 years competing in triathlons
    • USAT Ranked 1st in Georgia 2013, 40-44 year men
    • Top 10 age group for  South East Region 2013 and 2014, 40-44 year men
    • USAT All American 2014, 2013, 2012, 2011, 2010
    • National Qualifier in Olympic distance, 2014, 2013, 2012, 2011, 2010, 2009, 2008
    • Worlds Qualifier in Olympic distance, 2013, 2010, 2009
    • National and World Qualifier in Long Distance/half iron distance 2013, 2012, 2011
    • Ironman 70.3 Augusta 2012 and 2011, 2nd in age group both times
    • Ironman 70.3 World Championships 2013, 26th in age group
    • Numerous overall and masters podium finishes at local triathlons including West Point Lake, Chattanooga Waterfront, Peachtree City, Blalock Lakes, Richard B Russell, Rev3 Anderson, Gulf Coast, and Macon Rock-n-Roll.
    • Member of Race Across America (RAAM) 8 man cycling team, 2012, 2011. First place team and world record team in 2012.
    • Member of Multisport Explosion Elite team.
    • Married to Sarah for 19 years and father of 7 children; Emily 16, Andrew 14, Stephen 12, Thomas 9, James 7, Joey 5 and Maggie 2.

Susan Lipscomb

Pic and Bio soon for Susan!